计算物理 ›› 2006, Vol. 23 ›› Issue (2): 217-223.

• 研究论文 • 上一篇    下一篇

堆积床内非驻定过滤燃烧的一维研究

张根烜, 陈义良, 刘明侯, 叶桃红, 王海峰   

  1. 中国科学技术大学 热科学和能源工程系, 安徽 合肥 230027
  • 收稿日期:2005-03-25 修回日期:2005-11-17 出版日期:2006-03-25 发布日期:2006-03-25
  • 作者简介:张根烜(1982-),男,江苏淮安,博士生,从事小尺度流动与燃烧研究,中国科学技术大学230027.
  • 基金资助:
    国家自然科学基金(No.50376060,No.10372099)资助项目

A One-dimensional Study of Un-stabilized Filtration Combustion in a Packed Bed

ZHANG Gen-xuan, CHEN Yi-liang, LIU Ming-hou, YE Tao-hong, WANG Hai-feng   

  1. Thermal Science & Energy Engineering Department, University of Science & Technology of China, Hefei 230027, China
  • Received:2005-03-25 Revised:2005-11-17 Online:2006-03-25 Published:2006-03-25

摘要: 多孔介质内气体过滤燃烧不同于自由流中燃烧,燃气与多孔介质强烈换热.热波波速和燃烧波波速是燃烧过程的特征参数.以惰性堆积床内的甲烷/空气的低速过滤燃烧为例,提出一维解析模型,用摄动理论推导出燃烧波波速,用直接求解方法和格林函数方法给出充分发展后的和瞬态的燃烧温度分布,并进行计算验证.

关键词: 多孔介质, 过滤燃烧, 燃烧波, 摄动理论, 格林函数

Abstract: Gas filtration combustion in porous media differs substantially from the combustion with free flame. A one-dimensional model is proposed, and a perturbation theory is used for the combustion front velocity analysis of the methane-air premixed combustion in an inert packed bed, The temperature distribution is predicted for either fully-developed or transient combustion state, based on direct solution and Green's function method. Finally, computational experiments are given and the results are satisfactory.

Key words: porous media, filtration combustion, combustion wave, perturbation theory, Green's function

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